67738891023539 has 8 divisors (see below), whose sum is σ = 69020208501120. Its totient is φ = 66457692997696.

The previous prime is 67738891023523. The next prime is 67738891023569. The reversal of 67738891023539 is 93532019883776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67738891023539 - 2⁴ = 67738891023523 is a prime.

It is a super-2 number, since 2×67738891023539² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67738891023569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28717634 + ... + 30986775.

It is an arithmetic number, because the mean of its divisors is an integer number (8627526062640).

Almost surely, 2^{67738891023539} is an apocalyptic number.

67738891023539 is a deficient number, since it is larger than the sum of its proper divisors (1281317477581).

67738891023539 is a wasteful number, since it uses less digits than its factorization.

67738891023539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59725869.

The product of its (nonzero) digits is 411505920, while the sum is 71.

The spelling of 67738891023539 in words is "sixty-seven trillion, seven hundred thirty-eight billion, eight hundred ninety-one million, twenty-three thousand, five hundred thirty-nine".